What is the difference between Pre-Sale and Public token sales?

Many token sales offer a pre-sale in which the project rewards early participants by providing them with a discounted price on tokens or by providing a bonus. For instance, a discount would be offering 1 Token for 1 USD instead of 2 USD while a bonus could offer 1.5 Tokens for 1 USD.

Public token generation events (TGE’s) or initial coin offerings (ICO’s) are open to the everyone in the community and generally do not offer discounts for contributing.

Note: some countries residents are not allowed to participate due to the regulatory landscape.